
Principal Square Roots, Cube Roots, & 4th Roots. Fun Math Help. Game Tips:  The square root of 9 is 3 because (3 times 3) equals 9.  The cube root of 27 is 3 because (3 times 3 times 3) equals 27.  The fourth root of 81 is 3 because (3 times 3 times 3 times 3) equals 81.  Principal roots are positive roots.  The score report automatically appears after you have made 10 choices.  The Math score is based on your choices only and does not count the fish hits.  The Game score is reduced by the number of fish hits.  The game can be played using the mouse by itself or using the keyboard by itself.  If the game doesn't respond to keyboard input, click inside the game area to reset the game's focus.  Adjust the game's speed by pressing the + or  key repeatedly.  Refresh/Reload the webpage to start over again. 
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